1 Introduction

1.1 GEETA KHAREL

1.1.1 Picture

Mother

1.1.2 Quote

Cracks are common in natural and engineered soils and provide preferential pathways for water infiltration into the soil. Li and Zhang (2010)

1.1.3 Emoji

some nice emoji:💕 💋 😱

1.1.4 Gif

momma

1.1.5 Classes and Day

Classes Time
STAT 6210 MWF
CSES 6300 WF

1.1.6 Video

I selected this video: https://youtu.be/bKxL536zqro

1.1.7 Reference

1.2 Jian Cui

1.2.1 Picture

COSAM College Banner

1.2.2 Quote

The document format “R markdown” was first introduced in the knirt package(Xie,2015,2018d) in early 2012. Xie, Allaire, and Grolemund (2018)

1.2.3 Emoji

Here are some nice emoji:😰 😳 😱

1.2.4 Gif

Cute Pug

and a shy one…

1.2.5 Table

Class Time
STAT 6210 MWF
STAT 7600 TR
COMP 6130 MWF
MATH 7950 W

1.2.6 Video

Here is my choice for video: https://youtu.be/F38tIGO5TFY

1.3 Takhellambam Bijoychandra Singh

1.3.1 Picture

Picture:Loktak Lake (floating), Manipur

1.3.2 Quote

“Education is the most powerful weapon which you can use to change the world.” Mandela (2014)

1.3.3 Emojis

😡 😄 🐹

1.3.4 Giphy

Gif: Up On Poppy Hill Umi Matsuzaki

and a smaller one…

1.3.5 Class Timetable

Classes Time
STAT:6210-100 02:00-02:45 PM
STAT:7020-145 02:00-03:00PM

1.3.6 Video

Here is the video link.

2 R Markdown Syntax

2.1 cache=TRUE

Let, x=7
So,at the first run y=18.
At the second run,

x=8
(y=11+x)
## [1] 18
(y=11+x)
## [1] 19

This difference is because of cache=TRUE.

2.2 random Number

set.seed(1000)
x=rnorm(100)
variance=round(var(x),2) 
mean=round(mean(x),2)
median=round(median(x),2)

The value of \(mean\) ,\(median\) and \(variance\) are 0.02, 0.04 and 1.01 respectively. The values of respective terms are different from its theoretical values as there is no perfect bell curve (histogram left below). The bell shape is better as number of random numbers increases(right histogram).It is concluded that more random numbers gives better mean, median and variance.For example:

Variance, mean and median for normally distributed 10000000 random numbers are 1, 0 and 0.04 respectively.

2.3 Histogram

2.4 Equation

\[y = X\beta+ \epsilon\]

2.5 in-line equation

\[A := [a_{i,j}]_{i,j=1,...,p} \]

2.6 Blue

Keep calm and carry on programming

2.7 See more

Not much more to see

2.8 Color box

Forza Roma: sempre

References

Li, J. H., and L. M. Zhang. 2010. “Geometric Parameters and Rev of a Crack Network in Soil.” Computers and Geotechnics 37 (4): 466–75. https://doi.org/https://doi.org/10.1016/j.compgeo.2010.01.006.

Mandela, Nelson. 2014. “Education Is the Most Powerful Weapon Which You Can Use to Change the World.” Computer 8: 45pm.

Xie, Yihui, Joseph J Allaire, and Garrett Grolemund. 2018. R Markdown: The Definitive Guide. CRC Press.